Taylor Swift has debuted brand new track Ronan in an emotional performance during the Stand Up To Cancer benefit show in the US.

Playing the gala alongside other celebs including Robert Pattinson, and Coldplay, Tay Swizzle decided to premiere a new song for the crowd.

It was an emotional moment though as the track itself was inspired by the story of 4-year old Ronan, who sadly passed away last year after a battle with cancer. Having read a blog post written by Ronan's mum, Maya Thompson, Taylor decided to write the song in his memory.

After the gig was broadcast, the track shot straight to number 1 on US iTunes, and with all the proceeds going to charity, Taylor tweeted thanks to her followers saying: "This is a beautiful thing and I love you so much."